Front Calendar Issues (No Cancellation Message, Group Calendars Not Syncing): Fixes

Symptom → likely cause

1. The calendar is empty — nothing is connected yet

The most common "issue" isn't a bug at all: no calendar is linked. Front Calendar doesn't have its own event store. It's a view onto a Google or Microsoft calendar, so until you connect one, the tab shows an empty month grid and a "No calendars" prompt. Per Front's Getting started with Front Calendar, you connect by adding the associated email address as a new individual email channel, which requests calendar-access permissions during authentication.

To fix it, open the Calendar tab, click Add with Google or Add with Office365, and complete the OAuth consent — making sure you grant the calendar scope, not just email. If you're wiring up the Gmail side of Front for the first time, how to connect Gmail to Front covers the channel-connection flow the calendar rides on.

Honest note: the screenshot above is the genuine empty state on a trial workspace with no calendar linked — it's the same screen you'll hit before the fix, not a reproduced error. Once a Google or Office 365 account is connected here, the sync-specific issues below become relevant.

2. You deleted a meeting and nobody was notified

This is the single biggest surprise, and it's inherited straight from Google and Outlook: deleting an event removes it from your own calendar without telling anyone. Front mirrors the provider's model. Deleting and canceling are two different actions — a plain delete quietly drops the event from your view, while a cancel is what actually pushes a cancellation notice to attendees and clears it from their calendars. Front does surface the update side of this: per the Front Calendar guide, "you will also get notified by email if an event is updated or canceled." That's the inbound signal — proof the mechanism exists — but it doesn't guarantee your delete fired an outbound cancellation.

The fix is to cancel deliberately rather than delete:

1. Open the event you organized, from the connected calendar.
2. Choose the cancel/decline path and, when prompted, send the update/cancellation to guests rather than only removing it from your calendar.
3. If Front's inline calendar doesn't expose that prompt for a given event, open the same event in the source calendar — Google Calendar or Outlook on the web — and cancel it there so the provider generates the notice.

Honest note: this behavior applies to events where you are the organizer. If you weren't the organizer, deleting only removes your copy — you can't cancel a meeting you don't own, and attendees keep theirs.

3. There's no co-organizer field

Front's calendar uses a single-organizer model, so you won't find a co-organizer or "alternate host" field. Whoever created the event owns it, and ownership can't be shared inside Front. This trips up teams who expect a shared-inbox tool to make events collaborative the way conversations are. It doesn't — the Front shared inbox collaborates on messages, not on calendar-event ownership.

Workarounds:

• Create the event on a shared/resource calendar in Google or Microsoft so more than one person has native edit rights, then view that calendar in Front.
• Grant edit access to the underlying calendar at the provider level (Google's "Make changes to events" sharing, or Outlook delegate/editor permissions) so a colleague can manage the event even without a co-organizer field.
• Keep the coordination in the conversation thread — comments and assignments — and treat the calendar purely as the scheduling surface. For how Front's calendar fits alongside the rest of the workspace, see Front calendar explained.

4. Office 365 group calendars don't sync into Front

This one is a hard limitation, not a misconfiguration: Office 365 group calendars and calendar groups do not sync to Front. The Front Calendar documentation states this outright, alongside the related fact that you cannot add guests to an event that was originally created in Office 365. So if your team schedules against a Microsoft 365 Group calendar (the calendar attached to a Team or an M365 Group), that calendar won't appear in Front no matter how you connect it.

Workarounds:

• Point Front at a regular user or shared calendar instead of the group calendar. A standard shared calendar (owned by a mailbox and explicitly shared) can sync where a group calendar can't.
• Mirror key group events onto a personal or shared calendar that Front does read, if you need them visible inside Front.

5. A previously shared Office 365 calendar stopped appearing

If a shared (non-group) Office 365 calendar suddenly isn't showing in Front, the usual cause is a Microsoft change to how calendars are shared — calendars shared before that change aren't available by default to services like Front and must be re-shared. Front's community troubleshooter for Office 365 shared calendars not appearing lays out the fix, and every step has to happen in Outlook on the web, not the desktop app:

1. Remove the shared calendar from Outlook on the web (outlook.office.com/calendar).
2. Have the owner re-share the calendar with you via Outlook on the web.
3. Accept the resulting share invitation from the email in Outlook on the web (outlook.office.com/mail) — not in the desktop client.
4. Refresh Front and confirm the calendar now appears.

Honest note: doing any of these steps in desktop Outlook is the most common reason the fix "doesn't work." Keep the whole loop in the browser.

6. Invites still carry Front branding, or Exchange won't connect

Two smaller ones worth naming so you don't chase them. First, removing Front's branding from calendar invites requires the Professional plan or above — on lower tiers the branding stays, and no setting toggles it off. Second, Exchange On-Premise can't sync to Front Calendar at all; the integration targets Office 365 (cloud) and Google. If you're on-prem Exchange, the calendar tab won't populate, and the fix is an account on a supported provider, not a setting. Front also does not support Office 365 invite forwarding, so forwarded invites won't reliably appear as events.

Where an AI layer quietly reduces the fallout

Most of the tickets these quirks generate aren't really calendar-engine problems — they're communication problems. A silent delete becomes "is our meeting still on?" A missing group calendar becomes "why can't you see the event?" That's inbound conversation volume landing in your shared inbox.

Macha is an AI agent layer that sits on top of Front — not a replacement for it. Because it reads the same conversations your team does, it can answer routine scheduling and status questions ("did that get canceled?", "what's on the calendar for the demo team?") directly in the thread, and it can call a scheduling or calendar action through custom tools when you connect one. You pay per AI action taken rather than per seat, so it scales with volume; the current breakdown lives on the pricing page, and AI agents for customer service covers the broader pattern. It doesn't fix Front's co-organizer model — it just stops each quirk from turning into three follow-up messages.

FAQ

Does deleting a meeting in Front notify attendees? Not on its own. A delete removes the event from your calendar the way Google and Outlook do. To notify attendees you have to cancel and choose to send the update — if the inline calendar doesn't prompt you, cancel the event in the source calendar (Outlook on the web or Google Calendar).

Can I add a co-organizer to a Front event? No. Front uses a single-organizer model with no co-organizer field. Share edit rights on the underlying Google/Microsoft calendar, or use a shared/resource calendar, so a colleague can manage the event.

Why won't my Office 365 group calendar show in Front? Because Office 365 group calendars and calendar groups don't sync to Front — it's a documented limitation. Use a regular shared calendar, or mirror the events you need onto a calendar Front can read.

A shared Office 365 calendar disappeared from Front. How do I get it back? Re-share it. Remove it in Outlook on the web, have the owner re-share via Outlook on the web, accept the share email in Outlook on the web, then refresh Front. Doing any step in desktop Outlook is the usual reason it fails.

Can I remove Front branding from calendar invites? Only on the Professional plan or above. There's no toggle on lower tiers.

The short version

Front Calendar is a view onto Google or Microsoft, so it behaves like them — including deleting without notifying and single-organizer events — and it stops short of syncing Office 365 group calendars entirely. Connect the right account, cancel (don't delete) when you need to notify, re-share broken calendars through Outlook on the web, and route around the group-calendar limit with a shared calendar. For the questions these quirks push into your inbox, an AI layer on top of Front can absorb the routine ones before a human ever opens them.

Ready to see it on your own Front workspace? Start a free trial and connect Front in a few minutes.